Patents by Inventor John Ta-Yuan Lai

John Ta-Yuan Lai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10662275
    Abstract: Guanylurea alcohol phosphate salts are disclosed. Flame retardant thermoplastic and thermoset polymers can be made by incorporating said guanylurea alcohol phosphate salts into polymers and these polymers have improved properties over similar thermoplastic or thermoset polymers where guanylurea phosphate salts are added as flame retardant dispersions to said polymer. Flame retardant polyurethane foams where the guanylurea alcohol phosphate salts have been incorporated into the polyurethane are a particularly preferred embodiment.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: May 26, 2020
    Assignee: LUBRIZOL ADVANCED MATERIALS, INC.
    Inventors: John Ta-Yuan Lai, Janean Nagorski
  • Patent number: 10640616
    Abstract: An improved process for forming polyamide dispersions in water utilizing carbon dioxide to facilitate dispersion of the polyamide is disclosed. The polyamides are generally below 30,000 or 40,000 g/mole molecular weight when dispersed, but can be chain extended with polyfunctional species such as polyisocyanates after dispersion. The dispersions are useful in coatings, adhesives, and inks. Composites and hybrids of these other polyamides with vinyl polymers are also disclosed and claimed.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: May 5, 2020
    Assignee: LUBRIZOL ADVANCED MATERIALS, INC.
    Inventors: Gabor Erdodi, John Ta-Yuan Lai, Naser Pourahmady
  • Patent number: 10174140
    Abstract: Non-halogenated monomers that can be polymerized into flame retardant polymers, and processes to produce the monomers and polymers is provided. In a simplest aspect, there is provided a monomer composition that can comprise a) a group derived from one of a (meth)acrylic acid, (meth)acrylamide, or vinylbenzene, b) a polyphosphate moiety, and c) an amine species. In the monomer composition, the ethylenically unsaturated monomer of (a) is covalently bonded directly or through a linking group to the moiety of b), forming a precursor monomer unit. The amine species of c) is in complex with the precursor monomer unit. The polymer can be a homopolymer of the monomer composition, or a copolymer of the monomer composition having varying a), b) and c). In one embodiment, the polymer can additionally comprise ethylenically unsaturated monomers not covalently bonded to a polyphosphate moiety and/or can be cross-linked with a cross-linking agent such as resorcinol.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: January 8, 2019
    Assignee: LUBRIZOL ADVANCED MATERIALS, INC.
    Inventors: John Ta-Yuan Lai, Ti Chou
  • Publication number: 20180223016
    Abstract: The disclosed technology relates to pure polyitaconic acid homo- and co-polymers free of the less reactive tri-substituted vinyl monomers (e.g., citraconic acid or mesaconic acid) that may be used, for example, as builders in detergent applications, such as in the personal and home care market.
    Type: Application
    Filed: February 2, 2018
    Publication date: August 9, 2018
    Inventors: Krishnan Tamareselvy, Feng-Lung Gordon Hsu, Smita Brijmohan, Francine I. Shuster, John Ta-Yuan Lai, Gaurav Mago
  • Publication number: 20180215857
    Abstract: Guanylurea alcohol phosphate salts are disclosed. Flame retardant thermoplastic and thermoset polymers can be made by incorporating said guanylurea alcohol phosphate salts into polymers and these polymers have improved properties over similar thermoplastic or thermoset polymers where guanylurea phosphate salts are added as flame retardant dispersions to said polymer. Flame retardant polyurethane foams where the guanylurea alcohol phosphate salts have been incorporated into the polyurethane are a particularly preferred embodiment.
    Type: Application
    Filed: July 26, 2016
    Publication date: August 2, 2018
    Inventors: John Ta-Yuan Lai, Janean Nagorski
  • Patent number: 9988555
    Abstract: Polymers are disclosed that incorporate large portions of elastomeric polyamide oligomers connected with polyisocyanates. These polymers have enhanced properties over similar polyurethanes due to better hydrolysis resistance of polyamides over polyesters and better UV resistance of polyamides over polyethers. Polyurea linkages can also improve properties over polyurethane linkages. Composites and hybrids of these polymers and other polyamides with vinyl polymers are also disclosed and claimed.
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: June 5, 2018
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: Gabor Erdodi, Naser Pourahmady, John Ta-Yuan Lai, Anthony D. Pajerski
  • Publication number: 20170335070
    Abstract: An improved process for forming polyamide dispersions in water utilizing carbon dioxide to facilitate dispersion of the polyamide is disclosed. The polyamides are generally below 30,000 or 40,000 g/mole molecular weight when dispersed, but can be chain extended with polyfunctional species such as polyisocyanates after dispersion. The dispersions are useful in coatings, adhesives, and inks. Composites and hybrids of these other polyamides with vinyl polymers are also disclosed and claimed.
    Type: Application
    Filed: November 13, 2015
    Publication date: November 23, 2017
    Inventors: Gabor ERDODI, John Ta-Yuan LAI, Naser POURAHMADY, Israel J. SKOFF
  • Patent number: 9809675
    Abstract: This invention relates to polymers made from low molecular weight polyamide oligomers and telechelic polyamides (including copolymers) containing N-alkylated amide groups in the backbone structure. The described telechelic polyamides are used as the soft segment in the described TPU. These telechelic polyamides are unique in that they have an unexpectedly low glass-transition (desirably 30 degrees C. or lower) which makes them suitable for further reaction and polymerization, allowing for the formation of the described TPU. The resulting TPU can provide improved hydrolytic, oxidative and/or thermal stability as well as improved adhesion to other materials, especially polar materials.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: November 7, 2017
    Assignee: LUBRIZOL ADVANCED MATERIALS, INC.
    Inventors: Naser Pourahmady, Umit G. Makal, Gabor Erdodi, John Ta-Yuan Lai
  • Patent number: 9783687
    Abstract: Non-halogenated monomers that can be polymerized into flame retardant polymers, and processes to produce the monomers and polymers is provided. In a simplest aspect, there is provided a monomer composition that can comprise a) a group derived from one of a (meth)acrylic acid, (meth)acrylamide, or vinylbenzene, b) a polyphosphate moiety, and c) an amine species. In the monomer composition, the ethylenically unsaturated monomer of (a) is covalently bonded directly or through a linking group to the moiety of b), forming a precursor monomer unit. The amine species of c) is in complex with the precursor monomer unit. The polymer can be a homopolymer of the monomer composition, or a copolymer of the monomer composition having varying a), b) and c). In one embodiment, the polymer can additionally comprise ethylenically unsaturated monomers not covalently bonded to a polyphosphate moiety.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: October 10, 2017
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: John Ta-Yuan Lai, Ti Chou
  • Publication number: 20170081474
    Abstract: Low glass transition temperature polyamide oligomers or telechelic polyamides are formed from monomers forming tertiary amide linkages. These polyamides can be used with co-reactants to form high molecular weight or crosslinked polymers with desirable polyamide properties.
    Type: Application
    Filed: December 6, 2016
    Publication date: March 23, 2017
    Applicant: Lubrizol Advanced Materials, Inc.
    Inventors: Gabor Erdodi, Naser Pourahmady, John Ta-Yuan Lai
  • Publication number: 20170022451
    Abstract: The disclosed technology relates to esterified and/or ether containing polymers derived from itaconic acid that are free of the less reactive tri-substituted vinyl monomers (e.g., citraconic acid or mesaconic acid) that may be used, for example, as builders in detergent applications, such as in the personal and home care market.
    Type: Application
    Filed: March 13, 2015
    Publication date: January 26, 2017
    Inventors: Krishnan Tamareselvy, Feng-Lung Gordon Hsu, Smita Brijmohan, Francine I. Shuster, John Ta-Yuan Lai, Gaurav Mago, Yunpeng Zhu, Randy B. Collins
  • Patent number: 9527961
    Abstract: Low glass transition temperature polyamide oligomers or telechelic polyamides are formed from monomers forming tertiary amide linkages. These polyamides can be used with co-reactants to form high molecular weight or crosslinked polymers with desirable polyamide properties.
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: December 27, 2016
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: Gabor Erdodi, Naser Pourahmady, John Ta-Yuan Lai
  • Publication number: 20160185982
    Abstract: Non-halogenated monomers that can be polymerized into flame retardant polymers, and processes to produce the monomers and polymers is provided. In a simplest aspect, there is provided a monomer composition that can comprise a) a group derived from one of a (meth)acrylic acid, (meth)acrylamide, or vinylbenzene, b) a polyphosphate moiety, and c) an amine species. In the monomer composition, the ethylenically unsaturated monomer of (a) is covalently bonded directly or through a linking group to the moiety of b), forming a precursor monomer unit. The amine species of c) is in complex with the precursor monomer unit. The polymer can be a homopolymer of the monomer composition, or a copolymer of the monomer composition having varying a), b) and c). In one embodiment, the polymer can additionally comprise ethylenically unsaturated monomers not covalently bonded to a polyphosphate moiety.
    Type: Application
    Filed: March 8, 2016
    Publication date: June 30, 2016
    Inventors: John Ta-Yuan Lai, Ti Chou
  • Publication number: 20160115259
    Abstract: Non-halogenated monomers that can be polymerized into flame retardant polymers, and processes to produce the monomers and polymers is provided. In a simplest aspect, there is provided a monomer composition that can comprise a) a group derived from one of a (meth)acrylic acid, (meth)acrylamide, or vinylbenzene, b) a polyphosphate moiety, and c) an amine species. In the monomer composition, the ethylenically unsaturated monomer of (a) is covalently bonded directly or through a linking group to the moiety of b), forming a precursor monomer unit. The amine species of c) is in complex with the precursor monomer unit. The polymer can be a homopolymer of the monomer composition, or a copolymer of the monomer composition having varying a), b) and c). In one embodiment, the polymer can additionally comprise ethylenically unsaturated monomers not covalently bonded to a polyphosphate moiety and/or can be cross-linked with a cross-linking agent such as resorcinol.
    Type: Application
    Filed: May 23, 2014
    Publication date: April 28, 2016
    Inventors: John Ta-Yuan LAI, Ti CHOU
  • Patent number: 9290639
    Abstract: Non-halogenated monomers that can be polymerized into flame retardant polymers, and processes to produce the monomers and polymers is provided. In a simplest aspect, there is provided a monomer composition that can comprise a) a group derived from one of a (meth)acrylic acid, (meth)acrylamide, or vinylbenzene, b) a polyphosphate moiety, and c) an amine species. In the monomer composition, the ethylenically unsaturated monomer of (a) is covalently bonded directly or through a linking group to the moiety of b), forming a precursor monomer unit. The amine species of c) is in complex with the precursor monomer unit. The polymer can be a homopolymer of the monomer composition, or a copolymer of the monomer composition having varying a), b) and c). In one embodiment, the polymer can additionally comprise ethylenically unsaturated monomers not covalently bonded to a polyphosphate moiety.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: March 22, 2016
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: John Ta-Yuan Lai, Ti Chou
  • Publication number: 20160068620
    Abstract: The disclosed technology relates to pure polyitaconic acid homo- and co-polymers free of the less reactive tri-substituted vinyl monomers (e.g., citraconic acid or mesaconic acid) that may be used, for example, as builders in detergent applications, such as in the personal and home care market.
    Type: Application
    Filed: March 14, 2014
    Publication date: March 10, 2016
    Inventors: Krishnan Tamareselvy, Feng-Lung Gordon Hsu, Smita Brijmohan, Francine I. Shuster, John Ta-Yuan Lai, Gaurav Mago
  • Publication number: 20160009953
    Abstract: Polymers are disclosed that incorporate large portions of elastomeric polyamide oligomers connected with polyisocyanates. These polymers have enhanced properties over similar polyurethanes due to better hydrolysis resistance of polyamides over polyesters and better UV resistance of polyamides over polyethers. Polyurea linkages can also improve properties over polyurethane linkages. Composites and hybrids of these polymers and other polyamides with vinyl polymers are also disclosed and claimed.
    Type: Application
    Filed: February 3, 2014
    Publication date: January 14, 2016
    Applicant: Lubrizol Advanced Materials, Inc.
    Inventors: Gabor Erdodi, Naser Pourahmady, John Ta-Yuan Lai, Anthony D. Pajersky
  • Publication number: 20160002403
    Abstract: Low glass transition temperature polyamide oligomers or telechelic polyamides are formed from monomers forming tertiary amide linkages. These polyamides can be used with co-reactants to form high molecular weight or crosslinked polymers with desirable polyamide properties.
    Type: Application
    Filed: February 3, 2014
    Publication date: January 7, 2016
    Applicant: Lubrizol Advanced Materials, Inc.
    Inventors: Gabor Erdodi, Naser Pourahmady, John Ta-Yuan Lai
  • Publication number: 20150376325
    Abstract: This invention relates to polymers made from low molecular weight polyamide oligomers and telechelic polyamides (including copolymers) containing N-alkylated amide groups in the backbone structure. The described telechelic polyamides are used as the soft segment in the described TPU. These telechelic polyamides are unique in that they have an unexpectedly low glass-transition (desirably 30 degrees C. or lower) which makes them suitable for further reaction and polymerization, allowing for the formation of the described TPU. The resulting TPU can provide improved hydrolytic, oxidative and/or thermal stability as well as improved adhesion to other materials, especially polar materials.
    Type: Application
    Filed: February 4, 2014
    Publication date: December 31, 2015
    Applicant: LUBRIZOL ADVANCED MATERIALS, INC.
    Inventors: Naser Pourahmady, Umit G. Makal, Gabor Erdodi, John Ta-Yuan Lai
  • Publication number: 20150203692
    Abstract: Non-halogenated monomers that can be polymerized into flame retardant polymers, and processes to produce the monomers and polymers is provided. In a simplest aspect, there is provided a monomer composition that can comprise a) a group derived from one of a (meth)acrylic acid, (meth)acrylamide, or vinylbenzene, b) a polyphosphate moiety, and c) an amine species. In the monomer composition, the ethylenically unsaturated monomer of (a) is covalently bonded directly or through a linking group to the moiety of b), forming a precursor monomer unit. The amine species of c) is in complex with the precursor monomer unit. The polymer can be a homopolymer of the monomer composition, or a copolymer of the monomer composition having varying a), b) and c). In one embodiment, the polymer can additionally comprise ethylenically unsaturated monomers not covalently bonded to a polyphosphate moiety.
    Type: Application
    Filed: October 31, 2012
    Publication date: July 23, 2015
    Applicant: Lubrizol Advanced Materials, Inc.
    Inventors: John Ta-Yuan Lai, Ti Chou